Loom-shuttle.



A. ISHERWOOD.

LOOM SHUTTLE.

APPLICATION FILED JUNE Is, 1913.

1,156,404. Patented Oct. 12, 1915.

3 SHEETS-SHEET I.

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-A. ISHERWOOD.

LOOM SHUTTLE.

APPLICATION FILED JUNE 1a. 1913.

Patented Oct. 12, 1915.

3 SHEETSSHEET 2.

A. ISHERWOOD.

.LOOM SHUTTLE.

APPLICATION FILED JUNE 16, mars.

Patented Oct. 12, 1915.

3 SHEETS-SHEET 3.

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ALFRED rsnnawoon, or new BnnFonn, MAssAoHUsE'rrs.

Loon-SHUTTLE.

To all who met may concern:

Be it known that I, ALFRED Isrrnewoon, a

citizen of the United States, and a resident of New Bedford, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in Loom-Shutties, of which the following is a specification.

My invention relates to loom shuttles of either the automatic or common type and its object is to provide a simple and efiective threading device as wellas to improve the construction of the shuttle in the manner hereinafter set forth. ,1

I shall describe my invention with reference to the drawings which accompany and form a part of this specification,,but it, will be understood that various modifications may be made in the particular devices disclosed without departing'fromthe spirit of my invention.

In the drawings,.-Figure 1 is a plan view of one embodiment of my invention; Fig. 2 is a section taken on the'irregular line 2 .-2 of Fig. 1 and showing the threader and its sheet metal extension inelevationa Fig. 3 is a sectiontaken on the line3,-3 of Fig. 1. Figs. 1 and 5 are transverse sections taken on the lines 4& and 55, respectively, of Fig. 3. Fig. 6 is a side view of an element which I term a bridge. Fig. 7 shows a blank from which. the hook-plate'may be bent. Fig. This aside View ofan element which I call a protector plate. Fig. 8 shows a blank from which the threader and its extension may bebent, when the threader and extension are integral. Fig. 9is atransverse section corresponding to Fig. 1, and taken. on the line. 9 9 of Fig. 3 toshow a modified form oi bridge 22 which may be substituted for the bridge 19 in Fig. 3. Fig. 10 is a blank from which the bridgeshown in Fig. 9 may be bent. Fig. 11 is a plan view of the outer'end of the shuttle showing a modified form ofhookplate. Fig. 12 is a section taken on the line-12 12 of Fig. 11. Fig. 13 is aperspective :view of the hook plate shown, in Fig. 11.1. Fig. 14: shows a blank from which the,hook- )late illustrated in Fig. 13 may be bent." Fig. 15shows a blank from whichganother form of hookplate maybe bent. Fig. 16 is a transverse section corresponding'to Fig. 12 andshowing the modified hook-plate which isfornied from theblank illustrated in Fig. 15. Fig. 17 is a perspective view of the hook-plate shown in Fig. 16; Fig. .18 is a transverse Specification of Letters Patent.

illustrating a further modification, of the Patented 0st. 12,1915.

Application filed June 16, 1913. Serial No. 774,077.

hook-plate. Fig. 19 isv a perspectiveview of the hook-plate shown in Fig. 18. I V

In the particular drawings selected for more fully disclosing my invention, 1 repre-.

sents a shuttle having the usual cop-cavity 1 and is a cop secured in'said cavity. in

the usual manner. Slightly separated from the frontward wall of the shuttle is a plate 8, herein shown as formed ofsheet-metal, having itsupper edge 3 preferably inclined with respect to the front wall ofthe shuttle atany desired angle, and shown in the present instance as being substantially flush with the top of the shuttle, although it will be understood that said upper edge may extend above. the'top of the shuttle and be bent over the front wall of the same. In order to suitably space the plate .3 from the shuttle,

the cit-sets 3 may bebent out from the blank as shown in. F ig. o. The inward end finger 10 which projects slightly into the de pression .10 cut into the wall of the shuttle. The hook-plate 12" and the protector-plate 15 are securedto the stem 8 of the threader by a rivet which passes through the holes 1'? in each of these members and the upper end of the protector-plate maybe provided with lugs 16 which fit intorecesses 16 cut into purpose of making a tight joint between said plate and top portion andthereby prevent all danger of the thread being caught. be,

tween the upper part of the hook-plate and stem formed by riveting the members '8, 12 and 15 together, is inserted in a slot inthe theunder side of the top portion .5 for the b y the under side of the top portion 5.. The

througln The hook18 which trends ;inwardly andfrontwardly passes through the slot 11 in. the upright portion 6 of the threade'r and projects slightly into the recess 13; in the wall of the shuttle. The outward edges of the threader, the hook-plate and I and is provided with a slot '19 near one corner thereof so as to allow of a close adjustment of the spur 9 to the side of the bridge, as shown in Fig. 4', said spur be ng bent fronti'vardly toward said slot.

The operation is as follows; On the inward movement of the shuttle the thread is wound off the bobbin 2 and passes over the top portion 5 and the down-turned portion 7 of the threader, going into the space 38 between said down-turned portion and the rearward wall of the shuttle and un der the finger 10. It then passes under the spur 9 and comes against the rearward wallof the bridge 19 and thence up and over said bridge and into the space 29 between the bridge and threader, being inclosed now by the three sides of the threader,

I the {bridge andthe floor of the shuttle be tween the bridge and protectonplate and running along the rearward wall of said protector-plate. On the outward movement of theshuttle the thread passes through the space 33 between the outward end ofthe top portion 5 of the threader and the wall of the shuttle, thence between the hook13 and its cobperating recess 13 and into the eye 14,, and thence into the space 3% between the plate 3 and the shuttle, and finally into the long space 32 between the plate 3 and the shuttle, its position now being as indicatedfby the dotted line A, Figs. 1 and 2. On the next inward pick, the thread passes through the space32 and around the hook .13, assuming theposition shown atA in full lines Fig. 1. p

It will be noted that the frontward inclination of the (upper edge 3 of the plate will prevent the filling-fork from" sliding the yarn over the cop-cavity and entangling it with the yarn'which is whirling 05ft the bob bin when thejshuttle is used in a right hand loom. In fact ,the filling-forkdoes not causethe thread .to leave the space '32, and the thread passes under the .upperleft-hand corner 32" of the plate 3, the position of the inward portion of the thread during the operation of the fillingfork being shown at A" in the left-hand end of Fig. 1. At the i beginning of'the inward pick when the thread is being .drawn out ofthe space '32 andbfefore it reaches the hook-13, the thread jwill fall to the front @of the shuttle because of the frontw'ard inclination of the upper edge 3" of the plate ,3 and will not get into the cop-cavity. on the outward pick, the stretch of free yarn is shorter than if the upper edge of the plate were not inclined toward the frontward wall of the shuttle, for this stretch extends only from the corner 82 to the fork and not from the eye 14: to the fork as would be the case if said edge were not frontwardly inclined.

It will be noted that that portion of the yarn which runs off the cop to the eye and that portion thereof which has the position A on the outward pick are completely separated the one from the other by the plate 3 and therefore cannot come in contact with each other and break, and also that the yarn runs off the bobbin within, instead of outside, the shuttle and therefore cannot get out or blackened; Another advantage of slot 22, has the same position as the correspending part 19 of the bridge shown in Fig. 1, and the stem-24 is riveted to the stem 8 of the threader and the hook-plate 12. In this modification; the protectorplate 15 may be omitted, the upper end of the hook-plate forming a. tight joint with the under side of the top portion 5' of the threader to prevent the thread from catching.

In the modification shown in Fig. 11, the hook-plate 27, besides havinga hook 26, is provided with a laterally-extending guard 28, which extends over the bridge "as shown, the purpose of this guard being more efiectu'ally to prevent ballooning or over-throwing. In this case as before, the hook-plate and protectonif the latter be employed, are riveted to the stem'8 of the thr'eade'r.

The hook-plate '30 bent from the blank shown in Fig. 15,, is provided with a'hook 26 and carries another form of transverse guard 81 having a point 31"---extending into the floor of the "shuttle. If desired, a pin 35 of hardened steel or the like may be secured to the hook-plate 30 and hook 26 as shown in lf igs. 16 and 17, for the purpose of af so that the two threads may be kept farther apart at the threader-end when the thread is being drawn out of the space 32 'on the outward movement of the shuttle. The thread from the bobbin passes along the edge of the guard 31 and is therebyheptf inline with the axis of the spindle, the'point 31 extending into the fioor of the shuttleto prevent the thread from getting under the guard. This form of hook-plate is chiefly used in automatic shuttles, where it is desirable that the thread should pass vin a straight line from the bobbinzto the threader or the slot 38, to lessen the .liabilityio't' breakage when the shuttle is automatically threaded. v

The hook-plate -36, shown in Figs. 18 and 19, is provided with a transverse guard 38 having a downwardly-extending point 38, which, as shown in Fig; 18, is driven into the floor of the shuttle and performs the same function as the point 31 of the'hook plate shown; in Fig. 16.

The transverse guard 38 extends over the bridge 19 as in the case of the guard 28 shown 111 Fig. 12.

It will be obviousthat in Figs. 16 and 18 the guards 31 and 38 both keep the yarn practically in line" with the axis of the bobbin, so that the yarn does not run along the protector plate as in the case of 12, and

that therefore these guards projecting across the path of the yarn put thelatter under a certain amount of tension. I i

In order, more clearly to define the directions of the various elements with respect to the shuttle, I have adopted the terms frontward and rearward, as applied to the walls of the shuttle, and the term inward and outward, as applied to the direction of the shuttle in operation,in' the samesense in which they have been used infthe patent to Northrup 926,016, June 22,".1909. For example, the plate 8 is adjacent to the frontward wall of the shuttle and the downturned portion 7 of the threader liestoward the rearward wall, and the finger 10 trends toward the outward portion of the shuttle, and the spur 9 toward theinward part thereof. a j

I claim:

1. In a loOm-shuttle having a threader and a cop-cavity, a plate secured to 'the threader and extending the length of the cop-cavity, whereby a space is provided between said plate and one wall of the shuttle to be traversed by theiillingwthread when the shuttle is moving in one direction, the upper edge of said plate being, inclinedfrontwardly. i ,i' s

2. In aloom-sliuttle having a threader and a cop-cavity, a plate" integral with the threader and extending the length of the cop-cavity, whereby a space is provided be tween said plate and one wall of the'shuttle to be traversed by the filling-thread when the shuttle is moving in one direction,the upper edge I of said plate being inclined frontwardly; 1 a

In a loom-shuttlehaving acop-cavity, athreader having a sheet-metal extension secured thereto and extending the length of the cop-cavity, and means spacing said extension from one wall of the shuttle, the upper edge of said extension being inclined frontwardly.

at. Ina loom-shuttle having a threader and a cop-cavity, a plate secured to the threader and extendingthe length of the cop-cavity, whereby a space is provided between said plate and one Wall of the shuttle to be trav ersed by thefilling-thread when theshuttle is moving in one direction, the upper edge of' said, plate being inclined, ;frontwardlv and its inward end being secured in a groove in said-shuttle. i

.5. In a loom-shuttle having a threader and a cop-cavity, a plate integral with the threader and extending the length of the I frontwardly andits inward end being secured in, a groove in said shuttle.

7. In a loom-shuttle, a threader comprisingan upright portion, a top portion terminating in a downturned portion, a finger 6X? tending outwardly and frontwardly from said downturned portion, said finger pro-' jecting-into a recess in the shuttle, and a hook trending inwardly and :t'rontwardly and projecting from said upright portion into a depression in the wall of the shuttle.

8. In a loomshuttle, a thr'eader comprising an upright portion, a top, portion terminating in a downturned portion, a finger eX-. tending outwardly and frontwardly from,

said downturned portion, said finger pro jecting into' arecess in the shuttle, a hook trending inwardly and frontwardlyj' and projecting from said upright portioninto a depression inthe wall of the shuttle, and a bridge extending parallel to said downturned portion and spaced frontwardly therefrom. j 1 v 9. Ina loo1nshuttle,.a threader comprisnating in a downturned portion, a finger ex- -125. ing an upright portion, a topportion termitending outwardly and frontwardly from. i

said downturned portion, said fingerprloectmg into a recess intheshuttle, a;hojok ing an upright portion, a top portion terminating in a down turned portion, a finger extending outwardly and frontwardlyfrom said down-turned portion, said finger "projecting 'into a recess in the shuttle, a hook trending inward-1y and frontwardly and proj-ecting-fr'om said upright portion into a depression in the wall of the shuttle, and a bridge extending parallel to said down turned portion and spaced frontwardly therefrom, said bridgehaving integral pins driven into the floor of the shuttle.

prising an upright portion, a top portion terminatingin a downturned portion, said upright portion ending in a stem sunk into a slot in the shuttle, and a hook-plate secured to said stem, said hook-plate having a hook passing through a slot in said upright por.- tion and trending inwardly and frontwardly.

12. In a loom-shuttle, a threader compris- 7 ing an upright portion, a top portion terminating-in a downturned portion, sald upright portion ending in a stem sunk into a slot in the shuttle and a hook-plate secured to said stem, said hook-plate having a hook passing through a slot in said upright portion and trending inwardly and frontwardly, and a guard extending transversely across the space between said upright an downturned portions.

13. In a loom-shuttle, a ,threader comprising an upright portion, a top portion terminating in-adownturned portion, said upright portion ending in a stem sunk into a slot in the shuttle, a hook-plate secured to said stem, said hook-plate having a hook passing througha slot in said upright portion and trending inwardly and frontwardly, a guard extending transversely across the space between said upright and downturned portions, and abridge secured to the, floor of the shuttle and extending parallel to said downturned portion.

' 14. In a loom "shuttle, a threader comprising an upright portion, a top portion-terminating in a downturned portion ,'said upright portion ending in a stem sunk into a slot in the shuttle, a hook-plate having a hook passingthrough a slot in said upright portion and tending inwardly and frontwardlv, and a protector-plate alsosecured to said'upright portionand having lugs on its upper part entering recesses in the under side of said top portion;

15. In a loom-shuttle, a threader comprising a stem, a hook-plate having a'hook passing-through a slot in said threader, and a protector-plate located on the rearwardside of said hook-plate, said hook-plateand protector-plate being secured to said stem and sunk in a slot in said shuttle.

. 16. In aloom-shuttle having a threader and a cop-cavity, means for dividing said cop-cavity longitudinally into a compare ment for the cop and a guide-groove for the thread, said means having its upperedge inclined frontwardly.

17. In'a' loom-shuttle, a threader having an extension located to divide the cop-cavity longitudinally into a compartment for the cop and a guide-groove for the thread, said extension having its upper edge inclined frontwardly.

18. In a loom-shuttle, a threader comprising an upright portion, a hook-plate having a hook passing through a slot in said uping n upright portion, a hook-plate having a hookpassing through a slot-in said upright portion, a guard extending transversely from said hook-plate and having a vertical portion terminating in a point sunk 7 into the floor of the shuttle. the rearward edge of said vertical portion being approximately in line with the axis of the bobbin.

- 20. In a loom-shuttle, a threader having an upright portion, a top portion terminating in a downturned portion, a bridge spaced frontwardly from said downturned portion, and a. guard extending transversely across the space between said upright and clownturned portions, the rearward edge of said guard being spaced frontwardly fromsaid bridge. 7

21. In a loom-shuttle, a threader having an upright portion; a top portion terminating in a downturned portion, a bridge spaced frontwardly from said downturned portion, and a guard extending transversely across the space between said upright and downturned portions, the rearward edge of said guard being spaced frontwardly from said and a "cop-cavity, a plate secured to he threader and extending the length of the cop-oavity, whereby a space is provided be tween said plate and one wall of theshuttle to be traversed by the filling-thread when the shuttle is moving in one direction.

In a loom-shuttle having a, threader and a, cop-cavity, a plate integral with the threedei' and extending the length of the copca-vity, whereby a space is provided be? tween said plate and one well of the shuttle to be traversed by the filling-thread when the shuttle is moving in one direction.

25. In a loom-shuttle having a threader and e cop-cavity, means for dividing said cop-cavity longitudinally into a compare 26. In a loom-shuttle, a threader having ALFRED ISHERWOOD. Witnesses:

ALBERT J. Isnnnwoon, MARGARET A. FRANKLIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. 0. 

